We all know to look for the change of seasons through the changing color of leaves on trees. But do you know why this happens, and when the trees know to do this? Here, I explain both, so now you will not only be able to appreciate the fantastic Fall foliage, but know why it happens and how the trees know when to do so! Enjoy.
Copyright 2016 Nexstar Broadcasting, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.